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Computer Ports Discussion

Computer Ports Discussion. Computer Technology & Repair Model. 2 types of ports: Serial and Parallel. Both are bi-directional Serial ports send information one bit at a time down a single wire. A two-way street.

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Computer Ports Discussion

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  1. Computer Ports Discussion Computer Technology & Repair Model

  2. 2 types of ports: Serial and Parallel • Both are bi-directional • Serial ports send information one bit at a time down a single wire. A two-way street. • Serial ports were made for devices that don’t require much data to be processed quickly like mice and keyboards. • Parallel ports send information several bits at once down multiple wires. A multi-lane highway. • Parallel ports were made for devices that require data to be processed much quicker, like printers.

  3. PS/2 Ports • 6-pin mini-din connector • Only used for mice and keyboards. • Color coded purple for keyboard and green for mouse

  4. LAN Port (RJ 45) • Resembles a telephone connection • Used for network connections • Can be 10, 100, or 1000 megabits per second (Mbps)

  5. USB – Universal Serial Bus Port • 3 standards: 1.1 (obsolete), 2.0, and 3.0 • 1.1 transferred at 12Mbps • 2.0 transfers at max 480Mbps • 3.0 transfers at max 4.8Gbps • USB devices are hot-swappable (do not have to turn off or restart the computer) • USB devices can be daisy chained (up to 127 devices connected via USB hubs)

  6. Firewire – IE 1394a & b • Used mainly for digital video devices • 2 standards: Firewire 1394a Firewire 1394b • Firewire 1394a transfers at 400Mbps • Firewire 1394b transfers at 800Mbps • Firewire devices are hot-swappable (do not have to turn off or restart the computer) • Firewire devices do not necessarily need a computer to connect to each other.

  7. Video Connection Ports • VGA - Older LCD monitor connection port – 15 pin connector • SVGA – Also an older LCD monitor connection port – 15 pin connector • S-Video (Separate Video)– small round port for connecting to a television monitor • HDMI (High Definition Multimedia Interface) – Similar to DVI in process and will carry audio signal also

  8. Auxiliary/Audio Ports • Line-In: For sound to enter the computer from an external source. Color lt. blue • Line-out: Where sound is output to headphones or speakers. Color lt. green • Mic-in: Microphone port. Color pink -----------On Some Units----------- • Center/Subwoofer: An added center channel. Color orange. • Surround Left/Right : For surround sound. Color black • Surround Back Left/Right: For surround sound. Color silver • Co-axial Digital Out.

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